Best Refurbished Hard Drives
Refurbished and used hard drives offer some of the lowest prices per terabyte available. Most are datacenter pulls, enterprise drives retired from service well within their rated lifespan. Many sellers test drives before resale and include seller warranties, making them a practical choice for homelabs, backup arrays, and bulk storage where brand-new retail drives are not required.
Check the interface before you check the price
Many of the cheapest drives below are SAS, not SATA. SAS needs a host bus adapter and will not plug into a normal motherboard, so if you do not have one it is not a cheap drive, it is a drive you cannot use. Those cards are marked. Beyond that, look for sellers that include SMART data or a seller warranty. Enterprise drives like Exos and Ultrastar are rated for 2+ million hours MTBF, so a drive with 20,000 to 40,000 hours of use still has substantial life left. Avoid drives with reallocated sectors or no return policy.
Quick Verdict
- Who this is for
- Budget-conscious buyers willing to trade manufacturer warranty coverage for significantly lower prices, homelab builders, Plex hoarders, bulk backup users, and cold-storage archivists.
- What usually wins
- A refurbished enterprise pull (Exos or Ultrastar) at 8 TB or above from a seller that includes a return policy or seller warranty. Prioritise drives with low power-on hours and no reallocated sectors.
- Prioritise
- Seller reputation and return policy first. Then lowest price per TB at your target capacity. Enterprise datacenter pulls offer the best combination of remaining lifespan and value.
Prices updated daily from Amazon.com. All links go directly to the retailer. Details.
Bottom line: the lowest price-per-TB pick on this page right now is the HGST Ultrastar DC HC510 (He10) 10TB 7200 RPM SATA 6Gb/s 256MB Cache 3.5-Inch | Power Disable | Enterprise Hard Drive - HUH721010ALE600 (0F27452), 10 TB used, at $200.00 ($20.00/TB) on Amazon.com. Check the current price.
Best Value Refurbished HDDs
The cheapest used and recertified hard drives available right now, ranked by cost per terabyte. SAS drives rank high here because they are genuinely the cheapest per TB, and they are marked because they need a host bus adapter.
Seagate Constellation Es.3 St4000nm0023 4 Tb 3.5 Internal Hard Drive
SAS interface. Needs a host bus adapter, it will not plug into a normal motherboard.
Pulled 529FG ST4000NM0023 4TB 3.5 7.2K 6Gb SAS Hard Drive
SAS interface. Needs a host bus adapter, it will not plug into a normal motherboard.
HP 695842-001 4TB SAS Hard Drive Disk (HDD) - 7,200 RPM, 3.5-inch form factor, SmartDrive Carier (SC), Midline (MDL), 6Gb per second Transfer Rate (TR)
SAS interface. Needs a host bus adapter, it will not plug into a normal motherboard.
Western Digital Re 4TB SAS Datacenter Capacity Hard Drive 3.5 inch 7200 RPM 32MB Cache | WD4001FYYG |
SAS interface. Needs a host bus adapter, it will not plug into a normal motherboard.
Seagate 4TB Enterprise Capacity SAS 12Gb s 512n 3.5" Internal Hard Drive Model ST4000NM0025
SAS interface. Needs a host bus adapter, it will not plug into a normal motherboard.
HKRVPXD EXOS 7E8 SAS HDD ST8000NM0075 8TB 7.2K 7200Rpm 256MB 12Gbps Enterprise Capacity 3.5 HDD Hard Drive for Server
SAS interface. Needs a host bus adapter, it will not plug into a normal motherboard.
SEAGATE TECHNOLOGY ST4000NM0023 HDD 4TB 7200RPM SAS 128MB 5 YEAR WAR 20-BOX
SAS interface. Needs a host bus adapter, it will not plug into a normal motherboard.
HGST Ultrastar 7K4000 4TB 3.5" 7200 RPM SAS 12Gb/s 64MB Cache Internal Enterprise Hard Drive - HUS724040ALS640
SAS interface. Needs a host bus adapter, it will not plug into a normal motherboard.
Refurbished Enterprise Drives
Recertified Seagate Exos, WD Ultrastar, and other datacenter-grade drives. Built for 24/7 workloads with higher endurance than consumer models.
Why this matters: Enterprise drives are over-engineered for datacenter duty, higher MTBF, vibration tolerance, and sustained throughput. A refurbished enterprise drive often outlasts a new consumer drive at a lower price per TB.
Seagate Enterprise ST3000NM0025 3TB 7200RPM SAS 12.0 GB/s 128MB 512n Enterprise Hard Drive (3.5 inch, Exos 7E8 HDD 512N SAS)
SAS interface. Needs a host bus adapter, it will not plug into a normal motherboard.
Seagate Exos x10 10TB SATA 6Gb/s 256MB Cache Enterprise Hard Drive 3.5" (ST10000NM0086)
Seagate Exos X14 ST14000NM0408 14TB 7.2K RPM CMR SATA 6Gb/s 512e 3.5in Hard Drive (Renewed)
Seagate/IBM Exos X16 16TB Enterprise Hard Drive HDD SAS 12Gb/s 256MB Cache 7200 RPM 4Kn CMR Helium Sealed 3.5in Hard Drive ST16000NM002G (Renewed)
SAS interface. Needs a host bus adapter, it will not plug into a normal motherboard.
Seagate Exos x12 12TB SATA 6Gb/s 256MB Cache Enterprise Hard Drive 3.5in (ST12000NM0127) (Renewed)
Seagate Exos 7E8 6TB 7200 RPM 512e SAS 12Gb/s 256MB Cache 3.5-Inch Enterprise Hard Drive - ST6000NM0095 (Renewed)
SAS interface. Needs a host bus adapter, it will not plug into a normal motherboard.
Seagate Exos X14 ST12000NM0008 12 TB Hard Drive - 3.5" Internal - SATA (SATA/600)
Western Digital HGST Ultrastar He10 HUH721008AL5204 8 TB Hard Drive - 3.5" Internal - SAS (12Gb/s SAS) - 7200rpm - 256 MB Buffer - 5 Year Warranty
SAS interface. Needs a host bus adapter, it will not plug into a normal motherboard.
High-Capacity Refurbished (8 TB+)
Large used drives for NAS builders and archival storage. Fewer drives means fewer bays, less power, and simpler setups.
HKRVPXD EXOS 7E8 SAS HDD ST8000NM0075 8TB 7.2K 7200Rpm 256MB 12Gbps Enterprise Capacity 3.5 HDD Hard Drive for Server
SAS interface. Needs a host bus adapter, it will not plug into a normal motherboard.
HGST Ultrastar DC HC510 (He10) 10TB 7200 RPM SATA 6Gb/s 256MB Cache 3.5-Inch | Power Disable | Enterprise Hard Drive - HUH721010ALE600 (0F27452)
HPE 819201-B21 8TB 12G SAS 7.2K LFF 512E SC MDL Hard Disk Drive
SAS interface. Needs a host bus adapter, it will not plug into a normal motherboard.
Genuine HUH721212AL4200 12TB HDD 7200 RPM SAS 12Gb/s LFF Drive Original
SAS interface. Needs a host bus adapter, it will not plug into a normal motherboard.
HPE 12 TB Hard Drive - 3.5" Internal - SAS (12Gb/s SAS)
SAS interface. Needs a host bus adapter, it will not plug into a normal motherboard.
Genuine P09155-B21 14TB SAS 12G BC 7.2K LFF LP He 512e MV HDD Original
SAS interface. Needs a host bus adapter, it will not plug into a normal motherboard.
G-Technology 14TB G-DRIVE USB 3.0 Desktop External Hard Drive, Silver - Compact, High-Performance Storage - 0G10506-1
Basicnology Enterprise HDD 14TB 7200RPM SATA 6Gb/s 128MB Cache 3.5inch Datacenter Hard Drive (BG14TSA256E) - 3 Years Warranty (Renewed)
Refurbished NAS Drives
Used IronWolf, WD Red, and other NAS-rated drives. NAS drives include firmware optimizations for multi-bay enclosures and RAID arrays.
Western Digital 14TB WD Red Plus NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, CMR, 512 MB Cache, 3.5" - WD140EFFX
Western Digital 12TB WD Red Pro NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" - WD121KFBX
Western Digital 10TB WD Red Plus NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" - WD101EFAX
Western Digital 10TB WD Red NAS Internal Hard Drive - 5400 RPM Class, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" - WD100EFAX (Old Version)
Western Digital 8TB WD Red Plus NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" - WD80EFAX
Seagate IronWolf Pro 16TB 7200 RPM SATA 6Gb/s 3.5" NAS HDD (ST16000NE000)
Seagate IronWolf Pro ST16000NE000 16 TB Hard Drive - 3.5" Internal - SATA (SATA/600), Mechanical Hard Disk
Western Digital 18TB WD Red Pro NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, CMR, 512 MB Cache, 3.5" - WD181KFGX
Used vs New $/TB — August 2026
Updated on rebuildA dated snapshot of the cheapest cost per terabyte at each capacity, split by condition, drawn from 5,221 HDD listings on Amazon.com (US) (New 3,261 · Used 1,864 · Refurbished 96). Free to cite with attribution — the live refurbished tables above always carry today's numbers.
Buying a used hard drive on Amazon US saves a median of just ~12% per terabyte — not the "half price" the folklore promises — and "Refurbished" is frequently dearer per TB than new. The biggest used discounts land on specific large-capacity deals that shift week to week with stock, so read the live table rather than fixing on one capacity.
Median across 11 capacity tiers — a long way from the "half price" the datahoarder folklore promises.
| Capacity | New $/TB | Used $/TB | Used saving | Refurb $/TB | Refurb vs new |
|---|---|---|---|---|---|
| 4TB | $23.80 | $22.25 | 7% | — | — |
| 6TB | $26.00 | $21.68 | 17% | $43.33 | 67% dearer |
| 8TB | $32.50 | $26.12 | 20% | $37.50 | 15% dearer |
| 10TB | $28.30 | $26.00 | 8% | $34.00 | 20% dearer |
| 12TB | $28.33 | $24.92 | 12% | $33.25 | 17% dearer |
| 14TB | $24.99 | $22.07 | 12% | $25.71 | 3% dearer |
| 16TB best used value | $35.65 | $25.56 | 28% | $25.00 | 30% cheaper |
| 18TB | $30.50 | $25.00 | 18% | $26.89 | 12% cheaper |
| 20TB | $31.00 | $29.00 | 6% | $31.00 | 0% dearer |
| 22TB | $32.26 | $29.55 | 8% | $20.91 | 35% cheaper |
| 24TB | $26.25 | $25.83 | 2% | $25.83 | 2% cheaper |
Method: cheapest single internal 3.5" SATA HDD by $/TB per capacity tier and seller-reported condition on Amazon.com (US) (SAS server pulls and USB externals excluded). Used saving = 1 − (used $/TB ÷ new $/TB); "Refurb vs new" compares the refurbished floor to the new floor. Point-in-time floors as of 2026-08-18; refurbished is thin (96 listings) so its tier floors are directional. The live refurbished ranking above is the source of truth. Used drives carry no warranty and unknown power-on hours — a 12% up-front saving can be erased by one early failure.
Cite this data
Writing about used or refurbished drives? Quote the number and link back — no permission needed.
HDDHunt Used-vs-New $/TB (August 2026): across 5,000+ live Amazon US HDD listings, buying used saves a median of ~12% per terabyte (range 2–28%), not half price — the biggest used discounts land on specific large-capacity deals that shift week to week (16TB reached 28% off in this August snapshot), and "Refurbished" is often dearer per TB than new. Source: HDDHunt, https://hddhunt.com/best-refurbished-hdds/
How to Choose
Refurbished drives can deliver outstanding value, but not all used drives are equal. Here is how to buy smart.
Seller quality
Buy from sellers that test drives before resale and offer a return window or seller warranty. Reputable refurbishers often include SMART reports showing power-on hours and sector health. Avoid listings with no return policy.
SMART health
Check for reallocated sector count, current pending sectors, and power-on hours. A drive with under 40,000 hours and zero reallocated sectors is a solid candidate. Avoid drives where the seller does not disclose SMART data.
Enterprise vs consumer pulls
Enterprise datacenter drives (Exos, Ultrastar) are designed for 2M+ hour MTBF and sustained 24/7 workloads. A retired enterprise drive with moderate hours typically has more useful life remaining than a consumer drive at the same age.
Risk and reward
Refurbished drives can cost 40–60% less than new retail. The trade-off is a shorter warranty and unknown usage history. Mitigate risk by buying from sellers with good return policies and by keeping backups of any data stored on refurbished drives.
Frequently Asked Questions
Are refurbished hard drives safe to buy?
They can be a smart buy if you shop carefully. Most refurbished drives are enterprise datacenter pulls (Exos, Ultrastar) rated for 2+ million hours MTBF and retired well within their lifespan, so a drive with 20,000–40,000 power-on hours often has plenty of life left. The keys are buying from a seller that tests drives and offers a return window or seller warranty, checking the SMART data (zero reallocated sectors, moderate hours), and — as with any drive — keeping backups.
How much do refurbished drives actually save you?
Less than the folklore suggests. Across 5,000+ live Amazon US listings in our August 2026 data, buying used saved a median of only about 12% per terabyte versus new, not "half price." Savings vary a lot by capacity, and which capacity leads shifts week to week with stock — in our August snapshot the standout was 16 TB at around 28% off, but on any given day a different large capacity can top it. Check the used-vs-new table on this page for the current gap at your target capacity before assuming used is the bargain.
Is "Refurbished" better than "Used"?
Not necessarily, and often it is the reverse on price. In our data, Amazon’s "Refurbished" listings were frequently dearer per terabyte than plain "Used" ones at the same capacity — the label implies more value than it delivers. What matters is the seller’s testing, the SMART report, and the return policy, not the word on the listing. Compare the actual $/TB, not the badge.
What is a SAS drive and why is it the cheapest one here?
SAS is a server interface that will not plug into a normal motherboard — it needs a host bus adapter (HBA). SAS pulls are frequently the cheapest listings by $/TB, which is exactly why we mark them: a drive you cannot connect is not a cheap drive. Only buy SAS if you already have an HBA and a free port, or you are prepared to add one.
What should I check before buying a used drive?
Look for a seller that discloses SMART data and offers a return window or warranty. In that report you want zero reallocated sectors, no current pending sectors, and reasonable power-on hours (under ~40,000 is a good sign on an enterprise drive). Avoid listings with no return policy. Enterprise pulls generally have more useful life left than a consumer drive of the same age.
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